Resonant converter topology with losses compensation for the ISOLDE/CERN modulator

• Autor(a) principal: Redondo, Luis
• Data de Publicação: 2017
• Outros Autores: Canacsinh, Hiren, Silva, J. Fernando, Fowler, A.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10400.21/9726
• topic: Accelerator power supply; Energy efficiency; Energy recovery; High-voltage pulse circuit; Resonant converter; Fonte de alimentação do acelerador; Eficiência energética; Recuperação de energia

This paper describes a solid-state asymmetric bridge resonant topology to increase the energy efficiency of switching pulse modulators. The solid-state resonant topology will replace an existing pulse transformer and thyratron-based resonant modulator to supply the 60-kV target potential for the ion acceleration of the On-Line Isotope Mass Separator ISOLDE accelerator. An experimental prototype is tested in order to validate the proposed concept, including a low auxiliary voltage power supply to compensate the losses in the circuit. The design of the circuit components and the experimental results for a 6-kV prototype are presented and discussed, as well as the design procedure and parameters for the 60-kV modulator, including a high-voltage gapped coil core.